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2019-10-16Support O_SYNC and O_DSYNC flags.Nicolas Lacasse
When any of these flags are set, all writes will trigger a subsequent fsync call. This behavior already existed for "write-through" mounts. O_DIRECT is treated as an alias for O_SYNC. Better support coming soon. PiperOrigin-RevId: 275114392
2019-10-16Fix syscall changes lost in rebaseMichael Pratt
These syscalls were changed in the amd64 file around the time the arm64 PR was sent out, so their changes got lost. Updates #63 PiperOrigin-RevId: 275114194
2019-10-16Merge pull request #736 from tanjianfeng:fix-unixgVisor bot
PiperOrigin-RevId: 275114157
2019-10-16Remove death from exec test namesMichael Pratt
These aren't actually death tests in the GUnit sense. i.e., they don't call EXPECT_EXIT or EXPECT_DEATH. PiperOrigin-RevId: 275099957
2019-10-15Minor vfs.FileDescriptionImpl fixes.Jamie Liu
- Pass context.Context to OnClose(). - Pass memmap.MMapOpts to ConfigureMMap() by pointer so that implementations can actually mutate it as required. PiperOrigin-RevId: 274934967
2019-10-15Remove panic when reassembly fails.Bhasker Hariharan
Reassembly can fail due to an invalid sequence of fragments being received. eg. Multiple fragments with same id which claim to be the last one by setting the more flag to 0 etc. It's safer to just drop the reassembler and increment a metric than to panic when reassembly fails. PiperOrigin-RevId: 274920901
2019-10-15Set NDP hop limit in accordance with RFC 4861Tamir Duberstein
...and do not populate link address cache at dispatch. This partially reverts 313c767b0001bf6271405f1b765b60a334d6e911, which caused malformed packets (e.g. NDP Neighbor Adverts with incorrect hop limit values) to populate the address cache. In particular, this masked a bug that was introduced to the Neighbor Advert generation code in 7c1587e3401a010d1865df61dbaf117c77dd062e. PiperOrigin-RevId: 274865182
2019-10-15Make Attach no longer a special snowflakeMichael Pratt
fsgofer.attachPoint.Attach has a bunch of funky special logic to create a RW file or connect a socket rather than creating a standard control file like localFile.Walk. This is unecessary and error-prone, as the attach point still has to go through Open or Connect which will properly convert the control file to something usable. As such, switch the logic to be equivalent to a simple Walk. Updates #235 PiperOrigin-RevId: 274827872
2019-10-14Internal change.gVisor bot
PiperOrigin-RevId: 274700093
2019-10-14Merge pull request #997 from dvrkps:patch-1gVisor bot
PiperOrigin-RevId: 274675428
2019-10-14Bump rules_go to v0.20.0 and gazelle to v0.19.0Nicolas Lacasse
PiperOrigin-RevId: 274673485
2019-10-14Reorder BUILD license and load functions in netstack.Kevin Krakauer
PiperOrigin-RevId: 274672346
2019-10-14Use a different fanoutID for each new fdbased endpoint.Bhasker Hariharan
PiperOrigin-RevId: 274638272
2019-10-11Set base to rootDavor Kapsa
2019-10-10Allow for zero byte iovec with MSG_PEEK | MSG_TRUNC in recvmsg.Ian Lewis
This allows for peeking at the length of the next message on a netlink socket without pulling it off the socket's buffer/queue, allowing tools like 'ip' to work. This CL also fixes an issue where dump_done_errno was not included in the NLMSG_DONE messages payload. Issue #769 PiperOrigin-RevId: 274068637
2019-10-10Fix bugs in fragment handling.Bhasker Hariharan
Strengthen the header.IPv4.IsValid check to correctly check for IHL/TotalLength fields. Also add a check to make sure fragmentOffsets + size of the fragment do not cause a wrap around for the end of the fragment. PiperOrigin-RevId: 274049313
2019-10-10Update TODO for OCI seccomp support.Ian Lewis
PiperOrigin-RevId: 274042343
2019-10-10Remove unnecessary assignment to pathDavor Kapsa
2019-10-10Allow rt_sigreturn in runsc goferMichael Pratt
rt_sigreturn is required for signal handling (e.g., SIGSEGV for nil-pointer dereference). Before this, nil-pointer dereferences cause a syscall violation instead of a panic. PiperOrigin-RevId: 274028767
2019-10-10Fix signalfd polling.Adin Scannell
The signalfd descriptors otherwise always show as available. This can lead programs to spin, assuming they are looking to see what signals are pending. Updates #139 PiperOrigin-RevId: 274017890
2019-10-10Merge pull request #909 from xiaobo55x:atomic_bitsopsgVisor bot
PiperOrigin-RevId: 274011064
2019-10-09Internal change.gVisor bot
PiperOrigin-RevId: 273861936
2019-10-09Merge pull request #811 from lubinszARM:pr_testutilgVisor bot
PiperOrigin-RevId: 273781641
2019-10-09Add blacklists for remaining runtime tests, and test that they parse correctly.Nicolas Lacasse
PiperOrigin-RevId: 273781112
2019-10-09Merge pull request #813 from xiaobo55x:pkg_sleepgVisor bot
PiperOrigin-RevId: 273668431
2019-10-09Enable pkg/atomicbitops support on arm64.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I1646aaa6f07b5ec31c39c318b70f48693fe59a7c
2019-10-08Remove stale TODOFabricio Voznika
PiperOrigin-RevId: 273630282
2019-10-08Ignore mount options that are not supported in shared mountsFabricio Voznika
Options that do not change mount behavior inside the Sentry are irrelevant and should not be used when looking for possible incompatibilities between master and slave mounts. PiperOrigin-RevId: 273593486
2019-10-08Add additional dependencies to :gopath tree.Nicolas Lacasse
PiperOrigin-RevId: 273586605
2019-10-07Implement IP_TTL.Ian Gudger
Also change the default TTL to 64 to match Linux. PiperOrigin-RevId: 273430341
2019-10-07Remove unnecessary context parameter for new pipes.Kevin Krakauer
PiperOrigin-RevId: 273421634
2019-10-07Add tests for $HOMEIan Lewis
Adds two tests. One to make sure that $HOME is set when starting a container via 'docker run' and one to make sure that $HOME is set for each container in a multi-container sandbox. Issue #701 PiperOrigin-RevId: 273395763
2019-10-07Rename epsocket to netstack.Kevin Krakauer
PiperOrigin-RevId: 273365058
2019-10-07Merge pull request #753 from lubinszARM:pr_syscall_linuxgVisor bot
PiperOrigin-RevId: 273364848
2019-10-06Add SECURITY.md.Ian Lewis
Adds minimal security policy info to SECURITY.md. This allows Github to advertise the security policy doc for the repo. See: https://github.blog/changelog/2019-05-23-security-policy/ See: https://help.github.com/en/articles/adding-a-security-policy-to-your-repository PiperOrigin-RevId: 273214306
2019-10-04Add sanity check that overlayCreate is called with an overlay parent inode.Nicolas Lacasse
PiperOrigin-RevId: 272987037
2019-10-04Return EIO from p9 if flipcall.Endpoint.Connect() fails.Jamie Liu
Also ensure that all flipcall transport errors not returned by p9 (converted to EIO by the client, or dropped on the floor by channel server goroutines) are logged. PiperOrigin-RevId: 272963663
2019-10-04Change linux.FileMode from uint to uint16, and update VFS to use FileMode.Kevin Krakauer
In Linux (include/linux/types.h), mode_t is an unsigned short. PiperOrigin-RevId: 272956350
2019-10-03Implement proper local broadcast behaviorChris Kuiper
The behavior for sending and receiving local broadcast (255.255.255.255) traffic is as follows: Outgoing -------- * A broadcast packet sent on a socket that is bound to an interface goes out that interface * A broadcast packet sent on an unbound socket follows the route table to select the outgoing interface + if an explicit route entry exists for 255.255.255.255/32, use that one + else use the default route * Broadcast packets are looped back and delivered following the rules for incoming packets (see next). This is the same behavior as for multicast packets, except that it cannot be disabled via sockopt. Incoming -------- * Sockets wishing to receive broadcast packets must bind to either INADDR_ANY (0.0.0.0) or INADDR_BROADCAST (255.255.255.255). No other socket receives broadcast packets. * Broadcast packets are multiplexed to all sockets matching it. This is the same behavior as for multicast packets. * A socket can bind to 255.255.255.255:<port> and then receive its own broadcast packets sent to 255.255.255.255:<port> In addition, this change implicitly fixes an issue with multicast reception. If two sockets want to receive a given multicast stream and one is bound to ANY while the other is bound to the multicast address, only one of them will receive the traffic. PiperOrigin-RevId: 272792377
2019-10-03Merge pull request #757 from xiaobo55x:pkg_bitsgVisor bot
PiperOrigin-RevId: 272760964
2019-10-03Don't report partialResult errors from sendfileAndrei Vagin
The input file descriptor is always a regular file, so sendfile can't lose any data if it will not be able to write them to the output file descriptor. Reported-by: syzbot+22d22330a35fa1c02155@syzkaller.appspotmail.com PiperOrigin-RevId: 272730357
2019-10-02Increase itimer test timeoutMichael Pratt
https://github.com/google/gvisor/commit/dd69b49ed1103bab82a6b2ac95221b89b46f3376 makes this test take longer. PiperOrigin-RevId: 272535892
2019-10-02Merge pull request #865 from tanjianfeng:fix-829gVisor bot
PiperOrigin-RevId: 272522508
2019-10-02Sanity test that open(2) on a UDS failsMichael Pratt
Spoiler alert: it doesn't. PiperOrigin-RevId: 272513529
2019-10-02fs/proc: report PID-s from a pid namespace of the proc mountAndrei Vagin
Right now, we can find more than one process with the 1 PID in /proc. $ for i in `seq 10`; do > unshare -fp sleep 1000 & > done $ ls /proc 1 1 1 1 12 18 24 29 6 loadavg net sys version 1 1 1 1 16 20 26 32 cpuinfo meminfo self thread-self 1 1 1 1 17 21 28 36 filesystems mounts stat uptime PiperOrigin-RevId: 272506593
2019-10-02Merge branch 'master' into pr_syscall_linuxAndrei Vagin
2019-10-01Remove extra --rmMichael Pratt
PiperOrigin-RevId: 272324038
2019-10-01runsc: remove todo from the build fileAndrei Vagin
b/135475885 was fixed by cl/271434565. PiperOrigin-RevId: 272320178
2019-10-01Include AT_SECURE in the aux vectorMichael Pratt
gVisor does not currently implement the functionality that would result in AT_SECURE = 1, but Linux includes AT_SECURE = 0 in the normal case, so we should do the same. PiperOrigin-RevId: 272311488
2019-10-01Add runsc logs to kokoro artifactsFabricio Voznika
PiperOrigin-RevId: 272286122
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